PIC18F23K22-ESLASHML datasheet(17/496 Pages) MICROCHIP

17 / 496 page

 2010 Microchip Technology Inc.

Preliminary

DS41412C-page 17

PIC18(L)F2X/4XK22

TABLE 1-2:

PIC18(L)F2XK22 PINOUT I/O DESCRIPTIONS

Pin Number

Pin Name

Type

Buffer

Type

Description

PDIP,

SOIC

QFN,

UQFN

227

RA0/C12IN0-/AN0

RA0

I/O

TTL

Digital I/O.

C12IN0-

Analog Comparators C1 and C2 inverting input.

AN0

Analog Analog input 0.

328

RA1/C12IN1-/AN1

RA1

I/O

TTL

Digital I/O.

C12IN1-

Analog Comparators C1 and C2 inverting input.

AN1

Analog Analog input 1.

RA2/C2IN+/AN2/DACOUT/VREF-

RA2

I/O

TTL

Digital I/O.

C2IN+

Analog Comparator C2 non-inverting input.

AN2

Analog Analog input 2.

DACOUT

Analog DAC Reference output.

VREF-

Analog A/D reference voltage (low) input.

RA3/C1IN+/AN3/VREF+

RA3

I/O

TTL

Digital I/O.

C1IN+

Analog Comparator C1 non-inverting input.

AN3

Analog Analog input 3.

VREF+

Analog A/D reference voltage (high) input.

RA4/CCP5/C1OUT/SRQ/T0CKI

RA4

I/O

TTL

Digital I/O.

CCP5

I/O

Capture 5 input/Compare 5 output/PWM 5 output.

C1OUT

CMOS Comparator C1 output.

SRQ

TTL

SR Latch Q output.

T0CKI

Timer0 external clock input.

RA5/C2OUT/SRNQ/SS1/HLVDIN/AN4

RA5

I/O

TTL

Digital I/O.

C2OUT

CMOS Comparator C2 output.

SRNQ

TTL

SR Latch Q output.

SS1

TTL

SPI slave select input (MSSP1).

HLVDIN

Analog High/Low-Voltage Detect input.

AN4

Analog Analog input 4.

RA6/CLKO/OSC2

RA6

I/O

TTL

Digital I/O.

CLKO

In RC mode, OSC2 pin outputs CLKOUT which has

1/4 the frequency of OSC1 and denotes the instruction

cycle rate.

OSC2

Oscillator crystal output. Connects to crystal or resonator

in Crystal Oscillator mode.

Legend:

TTL = TTL compatible input CMOS = CMOS compatible input or output; ST = Schmitt Trigger input with CMOS levels;

I = Input; O = Output; P = Power.

Note 1:

Default pin assignment for P2B, T3CKI, CCP3 and CCP2 when Configuration bits PB2MX, T3CMX, CCP3MX and

CCP2MX are set.

Alternate pin assignment for P2B, T3CKI, CCP3 and CCP2 when Configuration bits PB2MX, T3CMX, CCP3MX and

CCP2MX are clear.

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